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seedlookoutJAVA + BEDROCK

JAVA 26.3 · VERIFIED IN GAME

Mushroom island by a coastal stone arch, with an ocean monument and trial chambers

A small mushroom island sits in clear sea near a forested coast, where a tall stone arch rises above the trees.

Mushroom fieldsIslandOcean monumentRuined portalTrial chambersOcean
Mushroom island with giant red and brown mushrooms in clear sea, a forested coast and tall stone arch behind
The mushroom island at 282, 63, -138, with the stone arch to the south-west.From 282, 98, -208, facing south

About this world

This seed has a small mushroom island at 282, 63, -138, covered in giant red and brown mushrooms. It sits in clear teal sea with seagrass on the bottom. To the south-west, a forested coast climbs to a tall stone arch and rock spires with acacia trees on their ledges.

An ocean ruined portal lies on the sea floor at 144, 63, 48, about 230 blocks south-west of the island, with the stone arch headland just beside it. Trial chambers are underground at 64, -29, 32, about 80 blocks west of the portal. The ocean monument is far to the west, at -304, 63, -176, about 590 blocks from the island, off a wooded shore. Seeder lists this world on its Monument / Mushroom Fields page.

Coordinates

Each structure and biome was found at or near these coordinates in Java 26.3.

LocationXYZTeleport
Ocean monumentThe monument's outline shows on the sea floor through clear water. A wooded shore and a small grassy islet lie to the west and north, and rock spires rise to the south-east.Ocean monument found at these coordinates-30463-176
Mushroom fields islandA small mycelium island with giant red and brown mushrooms. A forested coast with a tall stone arch lies to the south-west.Mushroom fields biome found at these coordinates28263-138
Trial chambersTuff brick walls with copper trim and green copper floors, open to deepslate caves. The chambers span y -53 to 20.Trial chambers found at these coordinates64-2932
Ocean ruined portalClear sea next to a headland with steep rock cliffs and acacia trees. The portal sits on the sea floor between y 55 and 61 and shows only faintly through the water.Ruined portal found at these coordinates1446348

Screenshots

Small island covered in giant red and brown mushrooms in open teal sea
The island seen from the south.From 282, 98, -68, facing north
Clear sea beside a headland of steep rock cliffs with acacia trees and stone spires on top
The sea over the ocean portal at 144, 63, 48.From 214, 98, 48, facing west
Ocean monument outline on the sea floor under clear water, a wooded shore and small islet behind
The ocean monument at -304, 63, -176.From -304, 98, -106, facing north
Tuff brick hall with orange copper trim and a green copper floor, seen from above the floor
Underground cutaway view inside the trial chambers at y -29.From 63, -27, 31, facing west

Select a screenshot to open it at full size.

How to get there

  1. In Java Edition 26.3, choose Create New World, open the World tab and enter seed 41006135150685160.
  2. Set Game Mode to Creative or turn Allow Cheats on, and press F3 to show your coordinates.
  3. Run /tp @s 282 98 -138 to arrive above the mushroom island.
  4. For the ocean portal and the stone arch, run /tp @s 144 95 48. The portal is on the sea floor below, around y 55 to 61.
  5. The trial chambers are underground at 64, -29, 32. Run /tp @s 64 -29 32, and bring torches or night vision in survival.
  6. For the ocean monument, run /tp @s -304 95 -176 and look down into the water.

Questions

How far is the ocean monument from the mushroom island?

About 590 blocks west. The monument is at -304, 63, -176 and the island is at 282, 63, -138. The ocean portal and the trial chambers lie between them in the south.

Where is the stone arch?

On the forested headland beside the ocean portal at 144, 63, 48. It is tall enough to see clearly from the mushroom island, about 230 blocks to the north-east.

Can I see the ocean ruined portal?

Only faintly. It sits on the sea floor between y 55 and 61, a few blocks under the surface at 144, 48, so swim down to look at it.

Does this seed work on Bedrock or other versions?

We verified it only in Java 26.3. Bedrock and other Java versions may generate a different world from the same seed.

Verification

We verified this seed by hand in Java 26.3 on 2026-09-30, and the screenshots come from the game. Verification covers the listed structures and biomes in that version only, not the world spawn, chest loot or other versions. About verified seeds

Biome map

The seed map shows this world’s biomes and predicted structures with its Java 26.3 model. Its markers are predictions; the coordinates above are verified.

Open the Java 26.3 seed map
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